Rapid installation, disassembly, whole-movement and variable cast-in-place pipe gallery support system and construction method thereof

Abstract

The present invention relates to a rapidly installed, disassembled and fully movable variable cast-in-place pipe gallery support system and a construction method thereof, comprising support uprights, support cross bars and support longitudinal bars. The rapidly installed, disassembled and fully movable variable cast-in-place pipe gallery support system also comprises a retractable top support structure, a retractable bottom support structure, a retractable transverse support structure, a quick-connect fixing structure and an I-beam top support beam. The upper, middle and lower parts of a plurality of support uprights distributed in a matrix are connected and fixed to a plurality of support cross bars and support longitudinal bars at each intersection in the transverse and longitudinal directions through a plurality of quick-connect fixing structures to form a support skeleton of the support system; retractable top and bottom support structures are respectively provided at the upper and lower ends of each support upright, and retractable transverse support structures are respectively provided at both ends of each support longitudinal bar to form a support system. The present invention can effectively cooperate with the construction of prefabricated parts of cast-in-place pipe galleries, and has the advantages of saving time and labor, good safety, high efficiency, fast construction progress and good casting quality.

Description

Technical Field

[0001] The invention relates to a rapidly installed, disassembled, fully movable and changeable cast-in-place pipe gallery support system and a construction method thereof. Background Art

[0002] For the pipeline corridor projects that are currently being promoted on a large scale across the country, due to the high waterproofing requirements for the pipeline corridor and the high probability that the subsequent project construction will be closely followed after the construction of the pipeline corridor, the pipeline corridor is mostly constructed by on-site casting, and the construction period is relatively short. In the previous cast-in-place method of brackets, the bracket installation and removal cycle operation often takes a long time, and the docking points of each pipe bracket during bracket installation and removal are connected by screw buckles or bolts. The installation and removal speed is slow, time-consuming and labor-intensive, which seriously affects the progress of the project, and the quality of the actual casting of the pipeline corridor is affected after multiple disassembly and assembly. If a fixed bracket system is invested in at one time, it will not only greatly increase the construction cost, but also fail to adapt to cast-in-place pipeline corridor prefabricated parts of various models and sizes. Summary of the invention

[0003] The purpose of the present invention is to design a quick installation, disassembly, whole-movement and variable cast-in-place pipe gallery support system and its construction method, which can effectively cooperate with the construction of cast-in-place pipe gallery prefabricated parts, and has the advantages of saving time and labor, good safety, high efficiency, fast construction progress and good casting quality.

[0004] To this end, a quick-installation, disassembly, and whole-movement variable cast-in-place pipe gallery support system of the present invention includes support uprights, support cross bars, and support longitudinal bars. The quick-installation, disassembly, and whole-movement variable cast-in-place pipe gallery support system also includes a retractable top support structure, a retractable bottom support structure, a retractable transverse support structure, a quick-connect fixing structure, and an I-beam top beam. The upper, middle, and lower parts of a plurality of support uprights distributed in a matrix are connected and fixed to a plurality of support cross bars and support longitudinal bars at each intersection in the horizontal and longitudinal directions through a plurality of quick-connect fixing structures to form a support skeleton of the support system; a retractable top support structure is provided at the upper end of each support upright, a retractable bottom support structure is provided at the lower end of each support upright, and a retractable transverse support structure is provided at both ends of each support longitudinal bar to form a support system.

[0005] The length, width and height of each supporting frame are adapted to the length, width and height of the pipe gallery of the cast-in-place prefabricated parts.

[0006] The quick-connect fixing structure is used to connect the intersections of each bracket upright, bracket crossbar and bracket longitudinal bar of the fixed bracket system. The quick-connect fixing structure is composed of a vertical clamping tube, a horizontal clamping tube and a vertical clamping tube, a clamping wedge groove and a fixing wedge nail. The vertical clamping tube, the horizontal clamping tube and the vertical clamping tube are respectively steel through-tubes. The horizontal clamping tube and the vertical clamping tube are vertically fixed to each other in the middle of the outer side. The middle part of the vertical clamping tube is vertically fixed to the horizontal and vertical clamping tubes at the intersection and fixing point in the middle of the horizontal clamping tube and the vertical clamping tube. A fixing wedge groove is provided on at least one end portion of each vertical, horizontal and vertical clamping tube. The longitudinal section of the fixing wedge groove is triangular, the end portion is the vertical surface of the rear part of the triangle, and the inclined surface of the triangle is an inclined surface gradually inclined from the end portion to the inner wall of the tube wall. The longitudinal section of the fixing wedge nail is triangular, the transverse section of the fixing wedge nail is arc-shaped, and the vertical surface of the rear end of the fixing wedge nail is fixed to the lower part of the wedge handle as a whole.

[0007] Or: The quick-connect fixing structure is used to connect the intersections of each bracket upright, bracket cross bar and bracket longitudinal bar of the fixed bracket system. The quick-connect fixing structure is composed of a vertical clamping tube, a horizontal clamping tube and a vertical clamping tube, a fixing wedge groove and a fixing wedge nail. The vertical clamping tube is a steel through-tube, the horizontal clamping tube and the vertical clamping tube are respectively steel tubes, and one end of the two horizontal clamping tubes and the two longitudinal clamping tubes are respectively distributed in a cross and fixed in the middle of the vertical clamping tube, and a fixing wedge groove is provided on the end of each vertical, horizontal and vertical clamping tube. The longitudinal section of the fixing wedge groove is triangular, the end part is the vertical surface of the rear part of the triangle, and the inclined surface of the triangle is an inclined surface that gradually inclines from the end part to the inner wall of the tube wall. The longitudinal section of the fixing wedge nail is triangular, the transverse section of the fixing wedge nail is arc-shaped, and the vertical surface at the rear end of the fixing wedge nail is fixed as a whole with the lower part of the wedge handle.

[0008] The retractable top support structure is used to adjust the length of the upper end of the support pole and to support the I-beam support beam and the top formwork of the cast-in-place pipe gallery. The retractable top support structure is composed of a screw rod, a limit screw ring, and a top support. The lower part of the screw rod is inserted into the upper end of the support pole, the limit screw ring is screwed on the screw rod, and the upper end of the screw rod is provided with a U-shaped top support, and the I-beam support beam is located on the top support.

[0009] The retractable bottom support structure is used to adjust the length of the lower end of the support pole and the mobile support system. The retractable bottom support structure is composed of a bottom screw, a limiting screw ring, a wheel frame, an axle rod, a moving wheel and a fastening nut. The upper part of the bottom screw is inserted into the lower port of the support pole, the limiting screw ring is screwed on the bottom screw, the lower end of the bottom screw is provided with an inverted U-shaped wheel frame, the lower end of the wheel frame is provided with shaft holes on both sides, the axle rod passes through the shaft holes on both sides of the wheel frame and the two ends are fixed to the wheel frame through gaskets and fastening nuts, and a moving wheel is provided on the axle rod in the middle of the lower end of the wheel frame.

[0010] The retractable transverse support structure is used to adjust the length of the two ends of the longitudinal rod of the bracket and to support the side formwork of the cast-in-place pipe gallery. The retractable transverse support structure is composed of a transverse screw, a limiting screw ring and a supporting top steel plate. One end of the transverse screw is inserted into the ports at both ends of the longitudinal rod of the bracket, the limiting screw ring is screwed on the transverse screw, and the other end of the transverse screw is provided with a supporting top steel plate for supporting the side formwork.

[0011] A method for constructing a cast-in-place pipe gallery using the quick-installation, disassembly, whole-movement and variable cast-in-place pipe gallery support system comprises the following steps:

[0012] (1) The preparation of the support vertical poles, support horizontal poles, support longitudinal poles, retractable top support structure, retractable bottom support structure, retractable lateral support structure, quick-connect fixing structure and I-beam support top beam is completed in the processing factory.

[0013] The length of the support vertical poles and support longitudinal poles is designed according to the designed height and width of the cast-in-place component corridor.

[0014] In order to facilitate the assembly of the support uprights, support cross bars and support longitudinal bars to form a support system, the inner and outer diameters of the support uprights, support cross bars and support longitudinal bars should be the same.

[0015] The inner diameters of the vertical clamp tubes, horizontal clamp tubes and longitudinal clamp tubes of the quick-connect fixings should be compatible with the outer diameters of the bracket vertical rods, bracket horizontal rods and bracket longitudinal rods.

[0016] The pointed end of the fixing wedge nail of the quick-connect fixing piece can be inserted into the fixing wedge groove.

[0017] The prepared support uprights, support cross bars, support longitudinal bars, retractable top support structure, retractable bottom support structure, retractable lateral support structure, quick-connect fixing structure and I-beam top beam are transported to the cast-in-place pipeline corridor construction site.

[0018] (2) At the construction site of the cast-in-place tunnel, cast the tunnel floor slab concrete according to the designed on-site cast components and maintain the concrete to form the tunnel.

[0019] (3) Assemble the support system on the formed concrete base plate. The lower ends of the plurality of support uprights distributed in a matrix are located on the formed concrete base plate. The upper, middle and lower parts of each support upright are connected with the plurality of support horizontal bars and support longitudinal bars at each intersection through the horizontal and vertical clamping tubes of the plurality of quick-connect fixing structures. Then, the butt joint end of each clamping tube is inserted into the corresponding clamping wedge groove with the pointed end of the clamping wedge nail. The wedge handle at the rear end of the clamping wedge nail is hit with a hammer so that the clamping wedge nail is wedged between the wall of each clamping tube and the outer wall of each inserted tube, thereby fixing the corresponding tube in the corresponding clamping tube wall to form the support skeleton of the support system.

[0020] A retractable top support structure is provided at the upper end of each bracket upright. The lower part of the screw of each retractable top support structure is inserted into the upper port of the bracket upright. The position of the limiting screw ring on the screw is adjusted so that the lower end surface of the limiting screw ring is supported on the edge of the upper port of the bracket upright.

[0021] A retractable bottom support structure is provided at the lower end of each support upright. The upper part of the bottom screw of each retractable bottom support structure is inserted into the lower port of the support upright. The position of the limiting screw ring on the bottom screw is adjusted so that the upper end surface of the limiting screw ring is supported on the edge of the lower port of the support upright. The moving wheel at the lower end of the bottom screw can run on the formed concrete bottom plate.

[0022] A retractable transverse supporting structure is provided at both ends of each bracket longitudinal rod. The inner end of the transverse screw of each retractable transverse supporting structure is inserted into the two ends of the bracket longitudinal rod. The position of the limiting screw ring on the transverse screw is adjusted so that the inner end surface of the limiting screw ring is supported on the edge of the end of the bracket longitudinal rod, and the supporting steel plate at the outer end of the transverse screw supports the side template outward.

[0023] Forming a support system.

[0024] Adjust the top height of the retractable top support structure so that the top supports are on the same plane, lock the moving wheels, and place an I-beam support beam for supporting the top formwork on each horizontal support; adjust the length of both sides of the retractable horizontal support structure so that the top support steel plates on both sides are on the same side plane.

[0025] (4) Tie the supporting steel bars of the side walls and top slabs of the prefabricated cast-in-place pipe gallery.

[0026] (5) Install the side and top formwork: adjust the position of the limiting screw ring of each retractable horizontal support structure on the horizontal screw rod so that each supporting top steel plate is supported on the outer side surface of the installed side formwork; adjust the position of the limiting screw ring of each retractable top support structure on the screw rod so that the I-beam supporting top beam located on each top support supports the lower end surface of the installed top formwork.

[0027] (6) After pouring concrete in the side formwork and top formwork and watering and curing, loosen the position of each limit screw ring on the screw rod, retract the top support steel plate inward by 5 to 8 cm, and retract each top support and I-beam top support beam downward by 5 to 8 cm.

[0028] (7) Unlock the moving wheels and push the support system forward as a whole to the next site where the concrete of the tunnel floor has been cast to carry out the next tunnel casting operation. Repeat steps (4) to (7) until the construction of the tunnel concrete components is completed and the support system is removed.

[0029] The fixed connection between the supporting pole and the vertical clamping tube of each quick-connect fixing structure is: the supporting pole is inserted into the vertical clamping tube, and a fixing wedge groove is provided on the lower end of the vertical clamping tube. The fixing wedge nail is wedged into the fixing wedge groove from bottom to top and fixed between the vertical clamping tube wall and the outer wall of the supporting pole.

[0030] The dismantling support system includes removing each retractable top support structure and each retractable bottom support structure from each support vertical pole, removing each retractable horizontal support structure from each support longitudinal rod, knocking out the fixing wedge nails in each clamping tube port in reverse, and separating the quick-connect fixing structure, support vertical pole, support horizontal rod and support longitudinal rod.

[0031] The above device and method achieve the purpose of the present invention.

[0032] The present invention can effectively cooperate with the construction of cast-in-place pipe gallery prefabricated parts, and has the advantages of saving time and labor, good safety, high efficiency, fast construction progress and good casting quality.

[0033] Compared with the prior art, the present invention has the following advantages and positive effects:

[0034] (1) The whole movable and changeable cast-in-place pipe gallery support system of the present invention has the advantage of quick installation and disassembly compared with the traditional manually constructed support, and the construction process only needs to be installed and disassembled once, which saves time, labor and effort. The present invention adopts a quick-connect fixing structure to connect the intersections of each support pole, support cross bar and support longitudinal bar of the fixed support system, and uses a clamping wedge groove and fixed separation of each connection point. Compared with the traditional fixing and separation methods such as screw buckles, threads, and bolts for each pipe connection point, the structure is simpler, easier to use, simple and quick to install and disassemble, firmly fixed, and highly efficient, which can speed up the progress of engineering construction.

[0035] (2) The present invention adopts a retractable top support structure, a retractable bottom support structure, and a retractable lateral support structure, which can quickly change the length, width, and height of the support system and quickly move the support system as a whole, greatly accelerating the construction speed, eliminating the waste of labor and materials caused by repeated construction, and saving construction time. Calculations show that the present invention can save 20% of construction steel, reduce construction costs by 60%, and increase construction speed by more than 6 times.

[0036] (3) The construction method of the present invention is scientific and reasonable, can improve work efficiency and quality, is convenient for flow-beat construction, and the support system can be recycled. It is suitable for the construction of pipeline corridors of different widths and is also applicable to the construction of pipeline corridors with horizontal and vertical slopes, thereby reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the support system of the present invention.

[0038] Figure 2 It is a side structural schematic diagram of the support system of the present invention.

[0039] Figure 3 Schematic diagram of the retractable top support structure of the present invention.

[0040] Figure 4 It is a partial schematic diagram of the retractable bottom support structure of the present invention.

[0041] Figure 5 Schematic diagram of the telescopic lateral support structure of the present invention.

[0042] Figure 6 It is a schematic diagram of the quick-connect fixing structure of the present invention.

[0043] Figure 7 It is a schematic diagram of another embodiment of the quick-connect fixing structure of the present invention.

[0044] Figure 8 It is a schematic diagram of a fixing wedge nail of a quick-connect fixing structure of the present invention.

[0045] Fig. 9 yes Figure 8 The structural diagram on the right side of .

[0046] Fig.10 It is a schematic structural diagram of the quick-connect fixing structure of the present invention when the fixing wedge is used.

[0047] Fig.11 It is a schematic diagram of the structure of the present invention in use state. DETAILED DESCRIPTION

[0048] like Figures 1 to 11 As shown, a fast-installed, fully movable and variable cast-in-place pipe gallery support system includes a support upright 1, a support cross bar 6 and a support longitudinal bar 7. The fast-installed, fully movable and variable cast-in-place pipe gallery support system also includes a retractable top support structure 2, a retractable bottom support structure 3, a retractable transverse support structure 8, a quick-connect fixing structure 5 and an I-beam top beam 4. The upper, middle and lower parts of a plurality of support uprights distributed in a matrix are connected and fixed with a plurality of support cross bars and support longitudinal bars in the horizontal and longitudinal directions at each intersection through a plurality of quick-connect fixing structures to form a support skeleton of the support system; a retractable top support structure is provided at the upper end of each support upright, a retractable bottom support structure is provided at the lower end of each support upright, and a retractable transverse support structure is provided at both ends of each support longitudinal bar to form a support system.

[0049] The support uprights, support cross bars and support longitudinal bars can be made of steel pipes with an outer diameter of 4-5 cm and a wall thickness of 0.6-0.8 cm. The distance between adjacent support uprights is 1-1.5 m, the distance between adjacent support cross bars is 1-1.5 m, and the distance between adjacent support longitudinal bars is 1-1.5 m.

[0050] The length, width and height of each supporting frame are adapted to the length, width and height of the pipe gallery 12 of the cast-in-place prefabricated parts.

[0051] like Figures 6 to 10 As shown, the quick-connect fixing structure 5 is used to connect and fix the intersections of each support upright, support crossbar and support longitudinal bar of the support system.

[0052] like Figure 6 As shown, the quick-connect fixing structure is composed of a vertical clamping tube 51, a horizontal clamping tube 52 and a vertical clamping tube 55, a clamping wedge groove 54 and a fixing wedge nail 57. The vertical clamping tube, the horizontal clamping tube and the vertical clamping tube are respectively steel through-tubes 53. The horizontal clamping tube and the vertical clamping tube are fixed to each other perpendicularly by welding at the middle of the outer side, and the middle of the vertical clamping tube is fixed to the horizontal and vertical clamping tubes perpendicularly by welding at the middle intersection and fixing point of the horizontal clamping tube and the vertical clamping tube. A fixing wedge groove is provided on at least one end of each vertical, horizontal and vertical clamping tube. The longitudinal section of the fixing wedge groove is triangular, the end portion is the vertical surface of the rear part of the triangle, and the inclined surface of the triangle is the inclined surface gradually inclined from the end portion to the inner wall of the tube wall. When fixing, the bracket cross bar can pass through the horizontal clamping tube and be fixed in the horizontal clamping tube by the fixing wedge nail at the corresponding position; the bracket longitudinal bar can pass through the vertical clamping tube and be fixed in the vertical clamping tube by the fixing wedge nail at the corresponding position.

[0053] like Figure 8 and Fig. 9 As shown, the longitudinal section of the said consolidation wedge nail 57 is triangular, the transverse section of the consolidation wedge nail is arc-shaped, and the vertical surface of the rear end of the consolidation wedge nail is fixed to the lower part of the wedge handle 58 by welding or direct processing. The consolidation wedge nail is made of steel to facilitate hammering.

[0054] like Figure 7 As shown, or: the quick-connect fixing structure is used to connect the intersections of each bracket upright, bracket cross bar and bracket longitudinal bar of the fixed bracket system. The quick-connect fixing structure is composed of a vertical clamping tube, a horizontal clamping tube and a vertical clamping tube, a clamping wedge groove and a fixing wedge nail. The vertical clamping tube is a steel through-tube, the horizontal clamping tube and the vertical clamping tube are respectively steel tubes, and one end of two horizontal clamping tubes and two longitudinal clamping tubes (or collectively referred to as universal clamping tubes 56) are respectively cross-shaped and vertically distributed and fixed to the middle of the vertical clamping tube by welding. A fixing wedge groove is provided on the end portion of each universal clamping tube 56. The longitudinal section of the fixing wedge groove is triangular, the end portion is the vertical surface of the rear part of the triangle, and the inclined surface of the triangle is an inclined surface that gradually inclines from the end portion to the inner wall of the tube wall. The longitudinal section of the fixing wedge nail is triangular, the transverse section of the fixing wedge nail is arc-shaped, and the vertical surface at the rear end of the fixing wedge nail is fixed to the lower part of the wedge handle as a whole.

[0055] When fixing, the end of the bracket cross bar or the bracket longitudinal bar is inserted into the corresponding universal clamping tube and fixed in the corresponding universal clamping tube by a fixing wedge nail.

[0056] The inner diameter length of the vertical clamping tube, the horizontal clamping tube and the longitudinal clamping tube (or the universal clamping tube 56) should ensure that the vertical clamping tube, the horizontal clamping tube and the longitudinal clamping tube can be inserted (such as Figure 7 Structure shown) or through (such as Figure 6 The structure shown) wherein.

[0057] like Fig.10 As shown, when the quick-connect fixing structure is used to connect and fix the support uprights, support cross bars and support longitudinal bars of the support system, after the support cross bar is inserted into the horizontal clamping tube (or universal clamping tube), the butt joint end of the horizontal clamping tube (or universal clamping tube) is inserted into the corresponding clamping wedge groove with the pointed head of the fixing wedge nail, and the wedge handle at the rear end of the fixing wedge nail is hit with a hammer to make the fixing wedge nail wedge between the wall of the horizontal clamping tube (or universal clamping tube) and the outer wall of the inserted support cross bar, thereby fixing the corresponding support cross bar in the tube wall of the corresponding horizontal clamping tube (or universal clamping tube).

[0058] like Figure 3 As shown, the retractable top support structure 2 is used to adjust the length of the upper end of the support upright and to support the I-beam support beam 4 and the top formwork 9 of the cast-in-place pipe gallery prefabricated part 10. The retractable top support structure is composed of a screw rod 21, a limit screw ring 22, and a top support 23. The lower part of the screw rod is inserted into the upper end of the support upright, the limit screw ring is screwed on the screw rod, and a U-shaped top support is provided at the upper end of the screw rod, and the I-beam support beam is located on the top support.

[0059] like Figure 4 As shown, the retractable bottom support structure 3 is used to adjust the length of the lower end of the bracket upright and the mobile bracket system. The retractable bottom support structure is composed of a bottom screw 31, a limit screw ring, a card wheel frame 32, a shaft rod 33, a moving wheel 36 and a fastening nut 34. The upper part of the bottom screw is inserted into the lower port of the bracket upright, the limit screw ring is screwed on the bottom screw, and the lower end of the bottom screw is provided with an inverted U-shaped card wheel frame, and the lower ends of the card wheel frame are provided with shaft holes, the shaft rod passes through the shaft holes on both sides of the card wheel frame and the two ends are fixed to the card wheel frame through gaskets 35 and fastening nuts, and a moving wheel is provided on the shaft rod in the middle of the lower end of the card wheel frame.

[0060] like Figure 5 As shown, the retractable transverse support structure 8 is used to adjust the length of the two ends of the bracket longitudinal rod and to support the side formwork 11 of the cast-in-place pipe gallery 12. The retractable transverse support structure is composed of a transverse screw 81, a limit screw ring 82 and a top support steel plate 83. One end of the transverse screw is inserted into the ports at both ends of the bracket longitudinal rod, the limit screw ring is screwed on the transverse screw, and the other end of the transverse screw is provided with a top support steel plate for supporting the side formwork.

[0061] A method for constructing a cast-in-place pipe gallery using the quick-installation, disassembly, whole-movement and variable cast-in-place pipe gallery support system comprises the following steps:

[0062] (1) The preparation of the support vertical poles, support horizontal poles, support longitudinal poles, retractable top support structure, retractable bottom support structure, retractable lateral support structure, quick-connect fixing structure and I-beam support top beam is completed in the processing factory.

[0063] The length of the support vertical poles and support longitudinal poles is designed according to the designed height and width of the cast-in-place component corridor.

[0064] In order to facilitate the assembly of the support uprights, support cross bars and support longitudinal bars to form a support system, the inner and outer diameters of the support uprights, support cross bars and support longitudinal bars should be the same.

[0065] The inner diameters of the vertical clamp tubes, horizontal clamp tubes and longitudinal clamp tubes of the quick-connect fixings should be compatible with the outer diameters of the support vertical poles, support cross bars and support longitudinal bars, and it should be ensured that the support vertical poles, support cross bars and support longitudinal bars can be inserted into or pass through the vertical clamp tubes, horizontal clamp tubes, longitudinal clamp tubes and universal clamp tubes.

[0066] The pointed end of the fixing wedge nail of the quick-connect fixing piece can be inserted into the fixing wedge groove.

[0067] The prepared support uprights, support cross bars, support longitudinal bars, retractable top support structure, retractable bottom support structure, retractable lateral support structure, quick-connect fixing structure and I-beam top beam are transported to the cast-in-place pipeline corridor construction site.

[0068] (2) At the construction site of the cast-in-place tunnel, cast the tunnel floor slab concrete according to the designed on-site cast components and maintain the concrete to form the tunnel.

[0069] (3) Assemble the support system on the formed concrete base plate. The lower ends of the plurality of support uprights distributed in a matrix are located on the formed concrete base plate. The upper, middle and lower parts of each support upright are connected with the plurality of support horizontal bars and support longitudinal bars at each intersection through the horizontal and vertical clamping tubes of the plurality of quick-connect fixing structures. Then, the butt joint end of each clamping tube is inserted into the corresponding clamping wedge groove with the pointed end of the clamping wedge nail. The wedge handle at the rear end of the clamping wedge nail is hit with a hammer so that the clamping wedge nail is wedged between the wall of each clamping tube and the outer wall of each inserted tube, thereby fixing the corresponding tube in the corresponding clamping tube wall to form the support skeleton of the support system.

[0070] A retractable top support structure is provided at the upper end of each bracket upright. The lower part of the screw of each retractable top support structure is inserted into the upper port of the bracket upright. The position of the limiting screw ring 22 on the screw rod 21 is adjusted so that the lower end surface of the limiting screw ring is supported on the edge of the upper port of the bracket upright.

[0071] A retractable bottom support structure is provided at the lower end of each support upright. The upper part of the bottom screw of each retractable bottom support structure is inserted into the lower port of the support upright. The position of the limiting screw ring on the bottom screw is adjusted so that the upper end surface of the limiting screw ring is supported on the edge of the lower port of the support upright. The moving wheel at the lower end of the bottom screw can run on the formed concrete bottom plate.

[0072] A retractable transverse supporting structure is provided at both ends of each bracket longitudinal rod. The inner end of the transverse screw of each retractable transverse supporting structure is inserted into the two ends of the bracket longitudinal rod. The position of the limiting screw ring 82 on the transverse screw is adjusted so that the inner end surface of the limiting screw ring is supported on the edge of the end of the bracket longitudinal rod, and the supporting steel plate at the outer end of the transverse screw supports the side template outward.

[0073] Forming a support system.

[0074] Adjust the top height of the retractable top support structure so that the top supports are on the same plane, lock the moving wheels, and place an I-beam support beam for supporting the top formwork on each horizontal support; adjust the length of both sides of the retractable horizontal support structure so that the top support steel plates on both sides are on the same side plane.

[0075] (4) Tie the supporting steel bars of the side walls and top slabs of the prefabricated cast-in-place pipe gallery.

[0076] (5) Install the side and top formwork: adjust the position of the limiting screw ring of each retractable horizontal support structure on the horizontal screw rod so that each supporting top steel plate is supported on the outer side surface of the installed side formwork; adjust the position of the limiting screw ring of each retractable top support structure on the screw rod so that the I-beam supporting top beam located on each top support supports the lower end surface of the installed top formwork.

[0077] (6) After pouring concrete in the side formwork and top formwork and watering and curing, loosen the position of each limit screw ring on the screw rod, retract the top support steel plate inward by 5 to 8 cm, and retract each top support and I-beam top support beam downward by 5 to 8 cm to separate the support system from the side formwork and top formwork.

[0078] (7) Unlock the moving wheels and push the support system forward as a whole to the next site where the concrete of the tunnel floor has been cast to carry out the next tunnel casting operation. Repeat steps (4) to (7) until the construction of the tunnel concrete components is completed and the support system is removed.

[0079] The fixed connection between the supporting pole and the vertical clamping tube of each quick-connect fixing structure is: the supporting pole is inserted into the vertical clamping tube, and a fixing wedge groove is provided on the lower end of the vertical clamping tube. The fixing wedge nail is wedged into the fixing wedge groove from bottom to top and fixed between the vertical clamping tube wall and the outer wall of the supporting pole.

[0080] The dismantling support system includes removing each retractable top support structure and each retractable bottom support structure from each support vertical pole, removing each retractable horizontal support structure from each support longitudinal rod, knocking out the fixing wedge nails in each clamping tube port in reverse, and separating the quick-connect fixing structure, support vertical pole, support horizontal rod and support longitudinal rod.

[0081] In short, the present invention can effectively cooperate with the construction of prefabricated parts of cast-in-place pipe gallery, has the advantages of saving time and labor, good safety, high efficiency, fast construction progress and good casting quality, and can be promoted for use.

Claims

1. A method for constructing a cast-in-place pipe gallery using a fast-installation, disassembly, and relocation variable cast-in-place pipe gallery support system, characterized in that: The steps include: (1) A rapidly installed, disassembled and fully movable cast-in-place pipe gallery support system, comprising support uprights, support cross bars and support longitudinal bars, the rapidly installed, disassembled and fully movable cast-in-place pipe gallery support system further comprising a retractable top support structure, a retractable bottom support structure, a retractable lateral support structure, a quick-connect fixing structure and an I-beam top beam; the upper, middle and lower parts of a plurality of support uprights distributed in a matrix are connected and fixed to a plurality of support cross bars and support longitudinal bars in the horizontal and longitudinal directions at each intersection through a plurality of quick-connect fixing structures to form a support skeleton of the support system; a retractable top support structure is provided at the upper end of each support upright, a retractable bottom support structure is provided at the lower end of each support upright, and a retractable lateral support structure is provided at both ends of each support longitudinal bar to form a support system; The quick-connect fixing member structure is used to connect the intersection points of each bracket upright, bracket cross bar and bracket longitudinal bar of the fixing bracket system, and the quick-connect fixing member structure is composed of a vertical clamping tube, a horizontal clamping tube and a vertical clamping tube, a clamping wedge groove and a fixing wedge nail. The vertical clamping tube, the horizontal clamping tube and the vertical clamping tube are respectively steel through-tubes, and the horizontal clamping tube and the vertical clamping tube are vertically fixed to each other at the middle part of the outer side as a whole, and the middle part of the vertical clamping tube is vertically fixed to the horizontal and vertical clamping tubes at the middle intersection and fixing point of the horizontal clamping tube and the vertical clamping tube as a whole, and at least one end portion of each vertical, horizontal and vertical clamping tube is provided with a fixing wedge groove, and the longitudinal section of the fixing wedge groove is triangular, and the end portion is the vertical surface of the rear part of the triangle, and the inclined surface of the triangle is an inclined surface gradually inclined from the end portion to the inner wall of the tube wall; the longitudinal section of the fixing wedge nail is triangular, and the transverse section of the fixing wedge nail is arc-shaped, and the vertical surface of the rear end of the fixing wedge nail is fixed to the lower part of the wedge handle as a whole; Or: the quick-connect fixing structure is used to connect the intersections of each bracket upright, bracket cross bar and bracket longitudinal bar of the fixed bracket system. The quick-connect fixing structure is composed of a vertical clamping tube, a horizontal clamping tube and a vertical clamping tube, a fixing wedge groove and a fixing wedge nail. The vertical clamping tube is a steel through-tube, and the horizontal clamping tube and the vertical clamping tube are respectively steel tubes. One end of the two horizontal clamping tubes and the two longitudinal clamping tubes are respectively distributed vertically in a cross and fixed in the middle of the vertical clamping tube. A fixing wedge groove is provided on the end portion of each vertical, horizontal and vertical clamping tube. The longitudinal section of the fixing wedge groove is triangular, the end portion is the vertical surface of the rear portion of the triangle, and the inclined surface of the triangle is an inclined surface gradually inclined from the end portion to the inner wall of the tube wall; the longitudinal section of the fixing wedge nail is triangular, the transverse section of the fixing wedge nail is arc-shaped, and the vertical surface of the rear end of the fixing wedge nail is fixed as a whole with the lower part of the wedge handle; The preparation of the support uprights, support crossbars, support longitudinal bars, retractable top support structure, retractable bottom support structure, retractable lateral support structure, quick-connect fixing structure and I-beam top beam is completed in the processing factory; Design the length of the support vertical poles and support longitudinal poles according to the designed height and width of the cast-in-place pipe gallery; In order to facilitate the assembly of the support poles, support cross bars and support longitudinal bars to form a support system, the inner and outer diameters of the support poles, support cross bars and support longitudinal bars should be the same; The inner diameters of the vertical clamp tube, horizontal clamp tube and longitudinal clamp tube of the quick-connect fixture should match the outer diameters of the bracket vertical rod, bracket horizontal rod and bracket longitudinal rod; The pointed end of the fixing wedge nail of the quick-connect fixing piece can be inserted into the fixing wedge groove; Transport the prepared support uprights, support cross bars, support longitudinal bars, retractable top support structure, retractable bottom support structure, retractable lateral support structure, quick-connect fixing structure and I-beam top beam to the cast-in-place pipe gallery construction site; (2) Cast the concrete of the bottom slab of the pipe gallery at the construction site of the cast-in-place pipe gallery according to the designed cast-in-place components and maintain the concrete to form the concrete; (3) Assembling the support system on the formed concrete base plate, the lower ends of the plurality of support uprights distributed in a matrix are located on the formed concrete base plate, and the upper, middle and lower parts of each support upright are connected with the plurality of support horizontal bars and support longitudinal bars at each intersection through the horizontal and vertical clamping tubes of the plurality of quick-connect fixing structures, and then the butt joint end of each clamping tube is inserted into the corresponding clamping wedge groove with the pointed end of the clamping wedge nail, and the wedge handle at the rear end of the clamping wedge nail is hit with a hammer, so that the clamping wedge nail is wedged between the wall of each clamping tube and the outer wall of each inserted tube, thereby fixing the corresponding tube in the corresponding clamping tube wall to form a support skeleton of the support system; A retractable top support structure is provided at the upper end of each support pole, and the lower part of the screw of each retractable top support structure is inserted and fixed in the upper port of the support pole, and the position of the limiting screw ring on the screw is adjusted so that the lower end surface of the limiting screw ring is supported on the edge of the upper port of the support pole; A retractable bottom support structure is provided at the lower end of each support pole, and the upper part of the bottom screw of each retractable bottom support structure is inserted into the lower port of the support pole, and the position of the limiting screw ring on the bottom screw is adjusted so that the upper end surface of the limiting screw ring is supported on the edge of the lower port of the support pole, and the moving wheel at the lower end of the bottom screw can run on the formed concrete bottom plate; A retractable transverse support structure is provided at both ends of each bracket longitudinal rod, and the inner end of the transverse screw of each retractable transverse support structure is inserted and fixed in the two ends of the bracket longitudinal rod, and the position of the limiting screw ring on the transverse screw is adjusted so that the inner end surface of the limiting screw ring is supported on the edge of the end of the bracket longitudinal rod, and the supporting top steel plate at the outer end of the transverse screw supports the side template outward; Forming a support system; Adjust the top height of the retractable top support structure so that the top supports are on the same plane, lock the moving wheels, and place an I-beam top support beam for supporting the top template on each horizontal top support; adjust the length of both sides of the retractable horizontal support structure so that the top support steel plates on both sides are on the same side plane; (4) Tie the supporting steel bars of the side walls and top slabs of the prefabricated cast-in-place pipe gallery; (5) Install the side and top formwork: adjust the position of the limiting screw ring of each retractable transverse support structure on the horizontal screw rod so that each supporting top steel plate is supported on the outer side of the installed side formwork; adjust the position of the limiting screw ring of each retractable top support structure on the screw rod so that the I-beam supporting top beam located on each top support supports the lower end surface of the installed top formwork; (6) After pouring concrete in the side formwork and top formwork, sprinkling water and curing, loosen the position of each limit screw ring on the screw rod, shrink the top support steel plate inward by 5 to 8 cm, and shrink each top support and I-beam top support beam downward by 5 to 8 cm; (7) Unlock the moving wheels and push the support system forward as a whole to the next site where the concrete of the tunnel floor has been cast to carry out the next tunnel casting operation. Repeat steps (4) to (7) until the construction of the tunnel concrete components is completed and the support system is removed.

2. The method according to claim 1, characterized in that: The fixed connection between the support pole and the vertical clamping tube of each quick-connect fixing structure is: the support pole is inserted into the vertical clamping tube, and a fixing wedge groove is provided on the lower end of the vertical clamping tube. The fixing wedge nail is wedged into the fixing wedge groove from bottom to top and fixed between the vertical clamping tube wall and the outer wall of the support pole.

3. The method according to claim 1, characterized in that: The length, width and height of each of the supporting frames are adapted to the length, width and height of the pipe gallery of the cast-in-place prefabricated parts.

4. The method according to claim 1, characterized in that: The retractable top support structure is used to adjust the length of the upper end of the support upright and to support the I-beam support beam and the top formwork of the cast-in-place pipe gallery. The retractable top support structure is composed of a screw rod, a limiting screw ring, and a top support. The lower part of the screw rod is inserted into the upper port of the support upright, the limiting screw ring is screwed on the screw rod, and a U-shaped top support is provided at the upper end of the screw rod, and the I-beam support beam is located on the top support.

5. The method according to claim 1, characterized in that: The retractable bottom support structure is used to adjust the length of the lower end of the bracket upright and the mobile bracket system. The retractable bottom support structure is composed of a bottom screw, a limiting screw ring, a card wheel frame, an axle rod, a movable wheel and a fastening nut. The upper part of the bottom screw is inserted and fixed in the lower port of the bracket upright, the limiting screw ring is screwed on the bottom screw, and an inverted U-shaped card wheel frame is provided at the lower end of the bottom screw. Axle holes are provided on both sides of the lower end of the card wheel frame, the axle rod passes through the axle holes on both sides of the card wheel frame and both ends are fixed to the card wheel frame by gaskets and fastening nuts, and a movable wheel is provided on the axle rod in the middle of the lower end of the card wheel frame.

6. The method according to claim 1, characterized in that: The retractable transverse support structure is used to adjust the length of the two ends of the longitudinal rod of the bracket and to support the side formwork of the cast-in-place pipe gallery. The retractable transverse support structure is composed of a transverse screw, a limiting screw ring and a supporting top steel plate. One end of the transverse screw is inserted into the ports at both ends of the longitudinal rod of the bracket, the limiting screw ring is screwed on the transverse screw, and the other end of the transverse screw is provided with a supporting top steel plate for supporting the side formwork.

7. The method according to claim 1, characterized in that: The dismantling support system includes removing each retractable top support structure and each retractable bottom support structure from each support upright, removing each retractable horizontal support structure from each support longitudinal rod, knocking out the fixing wedge nails in each clamping tube port in reverse, and separating the quick-connect fixing structure, support upright, support horizontal rod and support longitudinal rod.

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